diff options
Diffstat (limited to 'src/codegen.c')
| -rw-r--r-- | src/codegen.c | 59 |
1 files changed, 45 insertions, 14 deletions
diff --git a/src/codegen.c b/src/codegen.c index 5b883b5..bbe7d5f 100644 --- a/src/codegen.c +++ b/src/codegen.c @@ -42,10 +42,7 @@ void codegen(const char *file, mpq_t *folds, struct scope *scps, struct type *types, struct ast ast, struct lexemes toks) { - (void)types; (void)scps; - (void)ast; - (void)toks; char *triple = LLVMGetDefaultTargetTriple(); struct cgctx ctx; @@ -75,19 +72,40 @@ codegen(const char *file, mpq_t *folds, struct scope *scps, struct type *types, } idx_t_ +codegenfunc(struct cgctx ctx, mpq_t *folds, struct type *types, struct ast ast, + struct lexemes toks, idx_t_ i, const char *name) +{ + LLVMTypeRef ret = type2llvm(ctx, types[ast.kids[i].rhs]); + LLVMTypeRef ft = LLVMFunctionType(ret, NULL, 0, false); + LLVMValueRef fn = LLVMAddFunction(ctx.mod, name, ft); + LLVMBasicBlockRef entry = LLVMAppendBasicBlock(fn, "entry"); + + struct pair p = ast.kids[i]; + // for (i = p.lhs; i <= p.rhs; i = codegenstmt(ctx, folds, types, ast, toks, i)) + // ; + return fwdnode(ast, p.rhs); +} + +idx_t_ codegendecl(struct cgctx ctx, mpq_t *folds, struct type *types, struct ast ast, struct lexemes toks, idx_t_ i) { /* Constants are purely a compiler concept; they aren’t generated into anything */ - if ((ast.kinds[i] | 1) == ASTPCDECL) + if (ast.kinds[i] == ASTCDECL) return fwdnode(ast, i); struct pair p = ast.kids[i]; - switch (ast.kinds[p.rhs]) { - case ASTFN: - err("%s():%d: TODO", __func__, __LINE__); - default: { + if (ast.kinds[p.rhs] == ASTFN) { + struct strview sv = toks.strs[ast.lexemes[i]]; + /* TODO: Namespace the name */ + /* TODO: Temporary allocator */ + char *name = bufalloc(NULL, sv.len + 1, 1); + svtocstr(name, sv); + i = codegenfunc(ctx, folds, types, ast, toks, p.rhs, name); + free(name); + return i; + } else if (!types[i].isfloat) { struct strview sv = toks.strs[ast.lexemes[i]]; /* TODO: Namespace the name */ /* TODO: Temporary allocator */ @@ -96,7 +114,13 @@ codegendecl(struct cgctx ctx, mpq_t *folds, struct type *types, struct ast ast, LLVMValueRef globl = LLVMAddGlobal(ctx.mod, t, svtocstr(name, sv)); free(name); - /* TODO: Assert that the fold is an integer */ +#if DEBUG /* Assert that the fold is an integer */ + mpz_t den; + mpq_canonicalize(folds[p.rhs]); + mpq_get_den(den, folds[p.rhs]); + assert(mpz_cmp_si(den, 1) == 0); + mpz_clear(den); +#endif /* The max value of a u128 is length 39 */ char buf[40]; @@ -106,8 +130,8 @@ codegendecl(struct cgctx ctx, mpq_t *folds, struct type *types, struct ast ast, LLVMSetLinkage(globl, LLVMInternalLinkage); return fwdnode(ast, i); - } - } + } else /* && types[i].isfloat */ + err("%s():%d: TODO", __func__, __LINE__); } void @@ -126,9 +150,16 @@ type2llvm(struct cgctx ctx, struct type t) case TYPE_FN: err("codegen: %s: Not implemented for function types", __func__); case TYPE_NUM: - /* TODO: Floats */ - if (t.isfloat) - err("codegen: %s: Not implemented for floats", __func__); + if (t.isfloat) { + switch (t.size) { + case 2: return LLVMHalfTypeInContext(ctx.ctx); + case 4: return LLVMFloatTypeInContext(ctx.ctx); + case 0: + case 8: return LLVMDoubleTypeInContext(ctx.ctx); + case 16: return LLVMFP128TypeInContext(ctx.ctx); + default: __builtin_unreachable(); + } + } /* TODO: Arbitrary precision */ if (t.size == 0) return LLVMInt64TypeInContext(ctx.ctx); |